Home / 671,858.40-1,006,621.20-435,079.20

Finding the Fourth Proportional to 671,858.40, 1,006,621.20 and 435,079.20

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Solution

The fourth proportional to 671,858.40, 1,006,621.20 and 435,079.20 is: 651,863.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,858.40 : 1,006,621.20 = 435,079.20 : x
  2. Step 2: Convert to fraction form
    671,858.40/1,006,621.20 = 435,079.20/x
  3. Step 3: Cross multiply
    671,858.40x = 1,006,621.20 × 435,079.20
  4. Step 4: Simplify right side
    671,858.40x = 437,959,946,399.04
  5. Step 5: Solve for x
    x = 437,959,946,399.04/671,858.40
  6. Step 6: Final answer
    x = 651,863.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.